Ampler Stellar 2020 Manual - Page 14

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Firmware update

Troubleshooting the Firmware

update

V2.3 03.11.20

Electric system support

lift the rear wheel off the ground during the whole process to prevent

damages or injury.

For a successful factory calibration:

1. Lift the bike so that the rear wheel can spin freely.

2. Place the left crank horizontally towards the ground facing towards

the direction of travel.

3. Hold down the button (approx. 7-10 seconds) until it turns GREEN

from RED. As soon as the LED turns GREEN, release the button.

4. The LED starts blinking ORANGE and the bike is processing the

calibration of torque and motor sensors. After some moments, the

motor starts and thus the wheel starts spinning for around 15 se-

conds. After the motor stops, the LED should blink GREEN after about

5 seconds and the bike will automatically turn off. You can put the

wheel down again.

Now the motor and torque sensor are calibrated and assist modes are

set to default, you might need to adjust them again through the app.

Turn the bike on again and you are ready to use your Ampler!

Firmware update is done via the Ampler mobile app. If your bike is

connected to the app, you will get a notifi cation in your app about the

new available Firmware. Please go to the Vehicle sett ings to update

your Firmware.

Before starting the update, make sure:

• You have the latest Ampler app version

• You have internet connection on your phone

• Your phone's battery is not running low

• The battery level of the bike is more than 25%

• You have registered and paired the app with your bike

The update is done over Bluetooth in several steps. All the steps are

almost identical, and they need to be done in a row. This means that

after completing the fi rst update, if there will be a second update still

available – you will also need to complete this. The updates should

take about a minute to complete.

If you experience any problems with updating the Firmware, please

follow troubleshooting instructions below.

Flow A

1. Turn Bluetooth OFF

2. Turn Bluetooth ON

3. Wait 10 seconds for connecting

If there is no connection, start fl ow B. If the connection is established,

check if there is another Firmware update available and complete that

one as well.

Flow B

1. Close the Ampler app on the background